Upper Case Character Pattern in C++ using ASCII

In this article, we are going to learn about how to Upper Case Character Pattern in C++ using ASCII and maths numbers. Pattern programs are a good exercise to master the loops in the C++ language. Here in this example, we will try to print two types of patterns.

• Print a square matrix of Upper Case characters Horizontally.
• Print a square matrix box of Upper Case characters Vertically.

1. Print a square matrix box of Upper Case characters Horizontally

In this example, we are printing a square box pattern by using upper case characters. We will print characters horizontally n number of times and then switch to the next line with a new character. The ASCII value of the Upper case characters starts at 65. ‘A’ has the value of 65 in ASCII.

Desired Output for Size 3:
A A A
B B B
C C C

#include <iostream>
using namespace std;
int main()
{
   int num;

   cout<< "Please enter the size of Square Box: ";
   cin>> num;

   for(int row=1; row<=num; row++)
   {
     for(int col=1; col<=num; col++)
     {
       cout<< char(row+64);
     }
     cout<<"\n";
   }

   return 0;
}

Actual Output:

Please enter the size of Square Box: 4
AAAA
BBBB
CCCC
DDDD

2. Print a square matrix box of Upper Case characters Horizontally

#include <iostream>
using namespace std;
int main()
{
   int num;

   cout<< "Please enter the size of Square Box: ";
   cin>> num;

   for(int row=1; row<=num; row++)
   {
     for(int col=1; col<=num; col++)
     {
       cout<< char(row+64);
     }
     cout<<"\n";
   }

   return 0;
}

Actual Output:

Please enter the size of Square Box: 4
AAAA
BBBB
CCCC
DDDD

3. Print a square matrix box of lower Case characters Vertically

In this example, we are printing a square box pattern by using upper case characters. We will print characters Vertically n number of times.
The ASCII value of the Upper case characters starts at 65. ‘A’ has the value of 65 in ASCII.

Desired Output for Size 3:
A B C
A B C
A B C

#include <iostream>
using namespace std;
int main()
{
   int num;

   cout<<"Please enter the size of Square Box: ";
   cin>>num;

   for(int row=1; row<=num; row++)
   {
     for(int col=1; col<=num; col++)
     {
       cout<< char(col+64);
     }
     cout<<"\n";
   }

   return 0;
}

Please enter the size of Square Box: 4
ABCD
ABCD
ABCD
ABCD

#include <iostream>
using namespace std;
int main()
{
   int num;

   cout<<"Please enter the size of Square Box: ";
   cin>>num;

   for(int row=1; row<=num; row++)
   {
     for(int col=1; col<=num; col++)
     {
       cout<< char(col+96);
     }
     cout<<"\n";
   }

   return 0;
}

Please enter the size of Square Box: 4
abcd
abcd
abcd
abcd